中国尾矿坝地震安全度(15)──1976年大石河尾矿坝二维总应力地震反应分析
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摘要
本文使用目前国际上广泛流行的坝体地震反应分析方法,对遭受1976年唐山地震袭击的大石河尾矿坝进行了分析。并将分析结果与Seed简化法、一维反应分析方法的结果进行了对比。分析结果表明,二维总应力分析方法定性上能较为合理地给出坝体地震反应情况,Seed简化法直接用于坝体液化分析存在着一些问题,需要进一步改进。
The Dashihe tailings dam which Suffered the Tangshan Earthquake in 1976 was analyzed by using program QUAD-4 which is used to analyze seismic response of dam worldwide. The results were compared with those of Seed's simplified method and 1-D analyse and the computed results were compact with the seismic performance of the 1976 dam. Comparison shows that program QUAD-4 provides a better analysis qualitatively and the Seed's method needs to improve for analyzing seismic responses of dam.
引文
1IdrissIMetaLQUAD-4AComputerProgramforEvaluatingtheSeismicResponseofSoilStructruesbyVariableDampingFiniteElementProcedure.EERC73—16,19732SeedHBetal.SimplifiedProedureforEvaluatingSoilLiquefactionPotential.JSMFD,ASCE,Vol.973王余庆,辛鸿博用动单剪仪研究大石河尾矿砂的动力特性工业建筑,1995,25(3)4辛鸿博,于余庆大石河尾矿粘性土的动力变形和强度特征工业建筑、1995,25(2)

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